Nuun’s Active Hydration drink tabs are portable (no messy powder scoops) and sugar-free, and contain all four key electrolytes. They dissolve without having to mix or shake, and they have a delicious yet subtle flavor. Plus, for each pink-capped tube sold, Nuun will donate 50 cents to Susan G. Komen for the Cure. Nuun.com

Clif Shot Electrolyte Drink Lemonade, $22

Clif’s Electrolyte Drink tastes a lot like any lemon-lime sports drink, but unlike most others, it’s 91 percent organic. It contains a hefty serving of electrolytes and dissolves easily. Clifbar.com